how to calculate power of motor to b used ?

[galaxyqueen]

Hi all,
I need to know that if we have to install motor and a pumping set how would we know that how much horse power motor should b installed?

 

[Spoon]

Have you tried Googling it?

 

[bignod]

You will need to know the spec of the pump first as that will determine the size of the motor required

 

[Knobhead]

Pump rating?
Pump type?
Starting method?
Supply? (generator)

 

[Marvo]

All pumps should come with manufacturers data. You need to refer to the graphs they give you of how the shaft power varies with the head pressure and suction pressure. Find the point on the graph where your particular system will be running then allow a safety margin for your worse case scenario.

 

[galaxyqueen]

thanx every1..........based on ur replies i now got t idea of which direction i need to proceed nxt
God bless u

 

[galaxyqueen]

Pump rating?
Pump type?
Starting method?
Supply? (generator)

I have to select a pump submersible type that draws 4000 gallons of water per hour.....supply would be 3 phase